Remove DeviceLightEvent implementation

services/device/device_service.h

Index: services/device/device_service.h
diff --git a/services/device/device_service.h b/services/device/device_service.h
index 952dc64cc04c59cb24b76d63165d76026048ad27..ffcac3df497ca24dc4a869d07417b417783d3b3e 100644
--- a/services/device/device_service.h
+++ b/services/device/device_service.h
@@ -9,7 +9,6 @@
 #include "device/battery/battery_monitor.mojom.h"
 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom.h"
 #include "device/screen_orientation/public/interfaces/screen_orientation.mojom.h"
-#include "device/sensors/public/interfaces/light.mojom.h"
 #include "device/sensors/public/interfaces/motion.mojom.h"
 #include "device/sensors/public/interfaces/orientation.mojom.h"
 #include "device/wake_lock/public/interfaces/wake_lock_context_provider.mojom.h"
@@ -47,7 +46,6 @@ std::unique_ptr<service_manager::Service> CreateDeviceService(
 class DeviceService
     : public service_manager::Service,
       public service_manager::InterfaceFactory<mojom::Fingerprint>,
-      public service_manager::InterfaceFactory<mojom::LightSensor>,
       public service_manager::InterfaceFactory<mojom::MotionSensor>,
       public service_manager::InterfaceFactory<mojom::OrientationSensor>,
       public service_manager::InterfaceFactory<
@@ -86,10 +84,6 @@ class DeviceService
   void Create(const service_manager::Identity& remote_identity,
               mojom::FingerprintRequest request) override;
 
-  // InterfaceFactory<mojom::LightSensor>:
-  void Create(const service_manager::Identity& remote_identity,
-              mojom::LightSensorRequest request) override;
-
   // InterfaceFactory<mojom::MotionSensor>:
   void Create(const service_manager::Identity& remote_identity,
               mojom::MotionSensorRequest request) override;